Figure 5: Analysis of scanning tunnelling microscopy data on α-RuCl3 surface.
From: Atomic-scale observation of structural and electronic orders in the layered compound α-RuCl3
(a) Colour-coded binary lattice overlay. The red lattice spots correspond to the normalized intensity above the threshold of 0.5 and form a superlattice of a 
periodicity. (b) Histogram-based visualization of distribution of STM intensities at Cl atoms in a; the two peaks are approximated by Gaussian curves. The green arrow indicates admixture of a competing CO into charge density distribution. Inset in b shows a three-dimensional rendered experimental image of Cl triangular unit with a non-uniform distribution of STM intensities. (c) Schematic model showing anisotropy of charge density at Cl atoms along Ru–Cl–Ru electron hopping pathways (double-end blue and red arrows). The three ‘top’ Cl atoms in the unit cell are labelled in the same way in b,c.
